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Plant test review biology
Terms in this set (48)
List 3 major characteristics of plants?
Eukaryotic, have cell walls, and multicellular.
What does a seed contain?
Plant Embryo, food supply, and protective coating
If the xylem is destroyed in a young oak tree, it would interfere with the tree's ability to do what?
Conduct water to the leaves
What is the main function of the stem?
Transport substances between roots and leaves
What is the major difference between in monocot and dicot stem structure?
In monocot stems vascular bundles are scattered throughout the stem and in dicots vascular bundles are in a ring around the outer area.
Where does most of the photosynthetic activity occur in a plant?
In the mesophyll layer-leaf
what would cause the stomata to close?
too little water
Through which plant cells does does water move?
What type of fruit-eating animal would most likely ensure the widest dispersal of a plant's seeds?
What might a seed dispersed far away from the parent plant face less of?
When a plant reproduces vegetatively, what will the offspring look like
Its offspring are genetically identical
describe plant hormones
Growth regulators and chemical messengers
List 3 functions of auxins
Promoting apical dominance, promoting cell elongation in stems, protoperiodism
What regulates the growth patterns of plants such as ivy and pole beans?
Gravitotropism, phototropism, and thigmotropism.
What is the closing of a venus flytrap called?
a rapid response
A cactus with thorns for leaves have leaf adaptations that do what?
Reduce water loss
How is the cactus adapted to soak up rare rainfall quickly?
It has an extensive and shallow root system
Bald cypress trees have "knees" that function to?
Bring oxygen down to the roots
How does a carnivorous plant obtain nitrogen?
By trapping and digesting insects
Plants that get their water and nutrients directly from a host plant are called?
How do epiphites differ from parasites?
Epiphytes produce their own food
Tobacco plants produce chemicals, what for?
A natural inscesticide, protects the plant from insects, and affects the human nervous system
What does the figure show about the evolution of vascular plants?
They evolved vascular tissue before they evolved seeds
Is the maple a monocot or a dicot?
How are the vascular bundles in the stem of corn arranged?
Scattered throughout the stem
Is iris or periwinkle a moncot or a dicot? How do you know?
Iris. Flower parts in threes or multiples of three.
Are the stomata opened or closed?
What surrounds the stomata?
What are the spaces between the spongy mesophyll?
Why are they important?
Important for gas exchange
What is the vein composed of?
Xylem and phloem.
What do the arrows represent?
The movement of water through the plant.
What process causes water to move upward in the plant?
What kind of vascular tissue is involved in this process?
What process is helping to bring water to the top of the plant?
What two systems involved in transport of water and minerals in plants?
absorption through roots and transport through shoot by vascular tissue and stomata in leaf
What happens during self fertilization of a flower
pollen --> anther --> stigma --> pollen tube forms and grows through style --> reaches ovule within ovary --> sperm fertilizes egg
How do plant systems work together to make movement of liquid possible?
roots absorbs water and minerals through xylem and move it up through the stem; stem moves food produced in leaves down to other parts of plant in phloem
What plant systems would repair a wound in tree bark?
Explain the importance of vascular tissue in plants.
Vascular tissue allows water and dissolved nutrients to move throughout the plant body more efficiently than by osmosis alone. As a result, plants with vascular tissue, do not not have to grow close to the ground and can become large in size
Under what conditions or rainfall, temperature, and light would a plant's stomata be closed?
The stomata would be closed under conditions of low rainfall, high temperatures, and intense light because all three conditions would increase a plant's need for water. Low rainfall decreases the amount of water available to the plant through its roots. High temperatures increase the amount of water that evaporated from the plant's leaves, Intense light increases photosynthesis, which increases the use of water by the plant. Closed stomata would help conserve water in the plant.
multicellular eukaryote that produces its own food through photosynthesis
A period when an organism's growth or activity stops
A response that results in plant growth toward or away from a stimulus
A growth response to light
A growth response to gravity
A plant's response to seasonal changes in length of night and day
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